Triple Ball Clamp with 3 Holes Underwater Arm Bracket for Arm System with Diving Light Blue Description: The 3-hole butterfly clip design breaks tradition and increases the limitations of using the butterfly clip. The 1-inch ball arm system consists of 1-inch ball elements with groove and o- that prevent slipping, which provides better holding power with less force. Under water, they can be tightened to keep the lighting in place while still allowing you to reposition without loosening the clamp. Fully aluminum alloy, hard, thickened, oxidized surface treatment, more scratch-resistant; 304 stainless steel screw spring; wide and large handle, more convenient and easier to rotate, does not hurt your hands. Diving clamp holder for brands with 25 mm diameter ball arms, such as , , , ... Specification: Material: Aluminum Size: 55 mm * 55 mm * 62 mm (L. * W. * H. ) Weight: 65g The package includes: 1-piece clamp for fixing holes